From a552c76a36da20756aa445c38501177a259aeaa5 Mon Sep 17 00:00:00 2001
From: Alexandre <alexandre.catteau@gmail.com>
Date: Sun, 13 Mar 2022 15:47:15 +0100
Subject: [PATCH] Add initial structure for supporting multiple service
 managers

---
 README.md  |  3 +++
 install.sh | 35 ++++++++++++++++++++++-------------
 2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index dbd6fc7..733b321 100644
--- a/README.md
+++ b/README.md
@@ -17,3 +17,6 @@ Version 2 implementation works roughly as follows:
 * `systemd-templates/` contains Systemd units templates for running the script unattended.
 #### Installation
 * `install.sh` script copies Systemd templates to their destination, and enables conf-sync timer.
+
+### TODO
+* Add install support for OpenBSD
diff --git a/install.sh b/install.sh
index 531e747..fc17a97 100755
--- a/install.sh
+++ b/install.sh
@@ -2,22 +2,31 @@
 
 source "$(dirname "$0")/variables.conf"
 
-# TODO handle non-Systemd systems
+# NOTE: the handling of init/service manager comes from this discussion:
+# https://unix.stackexchange.com/questions/18209/detect-init-system-using-the-shell
 
-echo "Copying Systemd units to system directory..."
-sudo cp $(dirname "$0")/systemd-templates/conf-sync.service /etc/systemd/system/
-sudo sed -i -e "s/PH_USER/$(whoami)/g" /etc/systemd/system/conf-sync.service
-sudo sed -i -e "s:PH_DIRECTORY:$(pwd):g" /etc/systemd/system/conf-sync.service
-if [ "$client_type" = "server" ]; then
-  sudo cp $(dirname "$0")/systemd-templates/conf-sync-server.timer /etc/systemd/system/conf-sync.timer
+if [ -e /run/systemd/system ]; then # service manager is Systemd
+  echo "Copying Systemd units to system directory..."
+  sudo cp $(dirname "$0")/systemd-templates/conf-sync.service /etc/systemd/system/
+  sudo sed -i -e "s/PH_USER/$(whoami)/g" /etc/systemd/system/conf-sync.service
+  sudo sed -i -e "s:PH_DIRECTORY:$(pwd):g" /etc/systemd/system/conf-sync.service
+  if [ "$client_type" = "server" ]; then
+    sudo cp $(dirname "$0")/systemd-templates/conf-sync-server.timer /etc/systemd/system/conf-sync.timer
+  else
+    sudo cp $(dirname "$0")/systemd-templates/conf-sync-desktop.timer /etc/systemd/system/conf-sync.timer
+  fi
+
+  echo "Reloading Systemd..."
+  sudo systemctl daemon-reload
+  echo "Enabling timer (not starting it, either do it manually or reboot)..."
+  sudo systemctl enable conf-sync.timer
+elif [ "$(uname)" = "OpenBSD" ]; then
+  echo "ERROR: OpenBSD is not yet supported, but this is planned."
+  exit 0
 else
-  sudo cp $(dirname "$0")/systemd-templates/conf-sync-desktop.timer /etc/systemd/system/conf-sync.timer
+  echo "ERROR: could not determine a supported system. Exiting."
+  exit 1
 fi
 
-echo "Reloading Systemd..."
-sudo systemctl daemon-reload
-echo "Enabling timer (not starting it, either do it manually or reboot)..."
-sudo systemctl enable conf-sync.timer
-
 echo "Finished install. Exiting..."
 exit 0